Which of the following is/are correctly matched?
1 answer:
<em>a. Primary Treatment: solid waste settles into sludge.</em>
<em>b. Secondary Treatment: aerates water by adding oxygen to aid bacteria in the</em>
<em>b. Secondary Treatment: aerates water by adding oxygen to aid bacteria in thedecomposition process.✓</em>
c. Secondary Treatment: solid waste settles into sludge.
d. Primary Treatment: aerates water by adding oxygen to aid bacteria in the
decomposition process.
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Answer:
Option 2 and 4
Explanation:
i think it is option 2 and 4 because it tells us what a character does :)
